[Boost-bugs] [Boost C++ Libraries] #5698: Contains parameter

Subject: [Boost-bugs] [Boost C++ Libraries] #5698: Contains parameter
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-07-14 14:52:50

#5698: Contains parameter
----------------------------------+-----------------------------------------
 Reporter:  er.ci.2020@…          |       Owner:  danielw       
     Type:  Feature Requests      |      Status:  new           
Milestone:  To Be Determined      |   Component:  parameter     
  Version:  Boost 1.47.0          |    Severity:  Not Applicable
 Keywords:                        |  
----------------------------------+-----------------------------------------
 I tested this

 {{{

     template<typename Args, typename Tag>
     struct contains_parameter
         : mpl::not_<
             typename boost::is_void<
                 typename parameter::binding<
                     Args,
                     Tag,
                     void
                 >::type
             >::type
         >
     {};

 }}}

 which first appeared here:

 http://boost.2283326.n4.nabble.com/boost-users-Boost-Parameter-

 ArgumentPack-is-type-contained-td3415943.html

 and would like to suggest it as an addition.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5698>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.